On Apr 7, 2007, at 4:40 PM, Jay West wrote:
  There was a rackmount box (removed from rack but
available). I
 believe it to be a disk controller of some sort. It had a tag on it
 saying "RKA1-3, RKB1-3, SYS & DSK?" {the DSK was fuzzy, may not
 have that right). On the rear is a 2 position toggle switch marked
 "NORMAL" and "FORMAT". The front of the unit said System
 Industries, and on the back it said "Model 3040-3051". From the
 back of this box were about 4 or so long ribbon cables that I was
 told went to the disk drives (can't verify this for sure). 
   The RKA1-3, RKB1-3, SYS, DSK business sounds like OS/8 to me!
             -Dave
--
Dave McGuire
Port Charlotte, FL